Mihai Budiu created CALCITE-7629:
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Summary: DATEDIFF is shown in error messages as TIMESTAMPDIFF
Key: CALCITE-7629
URL: https://issues.apache.org/jira/browse/CALCITE-7629
Project: Calcite
Issue Type: Bug
Components: core
Affects Versions: 1.42.0
Reporter: Mihai Budiu
The parser uses SqlStdOperatorTable.TIMESTAMP_DIFF to represent DATEDIFF. In
consequence, programs that use DATEDIFF will actually unparse as TIMESTAMPDIFF,
and will report errors about TIMESTAMPDIFF, e.g.:
SELECT(DATEDIFF(a, b)) FROM T
will produce an error message like:
Invalid number of arguments to function 'TIMESTAMPDIFF'. Was expecting 3
arguments
This is confusing for the users.
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